DUFUR, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(352440) DUFUR
From Year=1904 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 20 37 118 251 464 631 848 828 606 320 74 25 4223
40 S 20 56 175 426 890 1521 2369 3197 3803 4123 4198 4223 4223
45 M 4 9 40 130 313 481 693 673 457 184 23 6 3012
45 S 4 13 52 182 495 976 1669 2342 2799 2983 3006 3012 3012
50 M 1 1 9 53 181 334 538 518 311 82 4 1 2033
50 S 1 2 11 63 244 578 1116 1634 1945 2027 2032 2033 2033
55 M 0 0 1 15 87 199 384 365 181 26 0 0 1259
55 S 0 0 1 16 103 302 687 1051 1232 1259 1259 1259 1259
60 M 0 0 0 3 33 98 239 220 83 5 0 0 682
60 S 0 0 0 3 37 135 374 594 677 682 682 682 682
Corn Growing Degree Days
50 M 10 24 88 184 315 407 531 522 399 219 40 11 2752
50 S 10 34 122 307 622 1029 1559 2082 2481 2700 2740 2752 2752
M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu